Author: Anonymous

The Ksp of bismuth iodide, BiI3 [Molar Mass = 589.68], is 8.1 x 10-19. If BiI3 (s) is dissolved in pure water, what is the solubility in grams per liter (g/L)? (Suggestion: Write the dissolving equation and Ksp expression for BiI3 before starting this problem.) a. 3.1 x 10-7 g/L b. 7.8 x 10-3 g/L c. 1.0 x 10-2 g/L d. 1.3 x 10-2 g/L e. 1.8 x 10-2 g/L   Tables.pdf Periodic Table with New Elements.pdf

What [PO43-] is required to just begin precipitation of Zn3(PO4)2 (s) from a solution of 0.2 M Zn2+ (aq)? (Suggestion: Write the dissolving equation and Ksp expression for Zn3(PO4)2 before starting this problem.) a. 1.1 x 10 -30 M b. 2.1 x 10 -16 M c. 1.1 x 10 -15 M d. 5.3 x 10 -16 M e. 1.0 x 10 -16 M   Tables.pdf Periodic Table with New Elements.pdf

Use your CHM-132 Tables to calculate the Kb of ClO- .   a. 3.0 x 10-8 b. 3.3 x 10-7 c. 3.0 x 106 d. 3.0 x 10-22 e.  3.3 x 107

Determine the coordination number of Fe in the complex [Fe(en)2Cl2]+ , and then answer the following  question. What is the most likely molecular geometry of [Fe(en)2Cl2]+ ? a. linear b. tetrahedral c. square planar d. octahedral e. trigonal planar   Tables.pdf Periodic Table with New Elements.pdf

What is the solubility (in mol/L) of AgCl(s) in a solution that contains 0.05 M AgNO3 (aq)? (Suggestion: Write the dissolving equation and Ksp expression for AgCl before starting this problem.) a. 3.6 x 10-9 mol/L b. 1.3 x 10-5 mol/L c. 3.2 x 10-20 mol/L d. 2.8 x 108 mol/L  e. 143 mol/L   Tables.pdf Periodic Table with New Elements.pdf

Consider the following data for the reaction: A → products [A] Rate 0.02 M 6.91 x 10-4 M/min 0.05 1.73 x 10-3 0.12 4.15 x 10-3 What is the rate law? (Suggestion: first determine the order by the ratio technique.) a. Rate = k[A] b. Rate = k/[A] c. Rate = k d. Rate = k[A]2 e. Rate = k/[A]2   Tables.pdf Periodic Table with New Elements.pdf

What is the solubility of BiI3 (s) (in g/L) in a solution that contains 0.24 M Bi3+ (aq)? a. 8.8 x 10-4 g/L b. 2.9 x 10-4 g/L c. 6.6 x 10-16 g/L d. 5.0 x 10-7 g/L e. 2.0 x 10-15 g/L   Tables.pdf Periodic Table with New Elements.pdf

A buffer is prepared by dissolving HF and NaF in water.  Which of the following is the net ionic equation describing how the buffer neutralizes an acid (H+ ) that is added to the buffer?  a. H+ + OH- → H2Ob. H+ + NaF → Na+ + HF  c. H+ + HF → H2F+d. H+ + H2O → H3O+e. H+ + F- → HF

What pH is required to just begin precipitating Ca(OH)2 (s) from a solution containing 0.005 M Ca2+(aq)? (Suggestion: Write the dissolving equation and Ksp expression for Ca(OH)2 before starting this problem.) a. 10.4 b. 1.8 c. 3.6 d. 12.2 e. 11.7   Tables.pdf Periodic Table with New Elements.pdf

Look up the Ka value of each acid below in your CHM-132 Tables, and then answer the following question. Which of the following is the strongest acid?   a. NH4+ b. HCHO2 c. HC2H3O2 d. HClO e. HCN